condition mean min max Sterile Leaflet 0.14720966666666666 0.0 0.441629 Fertile Leaflet with Sori 2.646843333333333 2.12029 3.45605 Primary Rachis 0.09673520000000001 0.0 0.204268 Secondary Rachis 0.121102 0.0 0.363306 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0